Looking for better fuel mileage - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 03-16-2013, 04:02 AM Thread Starter
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Looking for better fuel mileage

I have an 2008 cc/sb 6.4 with 76k miles and so far I have an H&S mini max with KEM performance nutty professor tune DPF delete and cold air intake, and I drive some what conserving keeping it around 65mph and I average 300 miles to a tank of fuel, now I was wondering what else I could do for better mileage?

2008 Ford F-350 Harley Davidson, KEM performance H&S Tuner with the Nutty Profesor Tune, Pro-Flow exhaust and K&N air filter
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post #2 of 11 Old 03-16-2013, 04:07 AM Thread Starter
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Also was considering a lift pump if that will help what the best one, I've had an air dog on my duramax but was also looking at the FASS lift pump but want to know what the easiest install and best for fuel mileage

2008 Ford F-350 Harley Davidson, KEM performance H&S Tuner with the Nutty Profesor Tune, Pro-Flow exhaust and K&N air filter
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post #3 of 11 Old 03-16-2013, 04:39 AM
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i don't think you need a lift pump quite yet considering your mod list and goals, you can try a sump at the bottom of your fuel tank if you really wanna get all the fuel you need out of it instead of a lift pump.. but honestly i couldn't tell you how to get better fuel milage except for tires

2007 Ford F250 Lariat 6.0 Powerstroke

mods:
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Sinister Coolant Filter
Swamps 48V FICM with PHP Atlas 40
B&W turnover ball hitch
EGR Delete
Diesel Site Intercooler Boots
SCT livewire TS 5015 w/IDP custom tunes
Agressive street, Tow W/jake brake, Economy

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post #4 of 11 Old 03-16-2013, 04:46 AM Thread Starter
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Quote:
Originally Posted by kendallcschm View Post
i don't think you need a lift pump quite yet considering your mod list and goals, you can try a sump at the bottom of your fuel tank if you really wanna get all the fuel you need out of it instead of a lift pump.. but honestly i couldn't tell you how to get better fuel milage except for tires
Funny you say that about tires because I just put american force 22" rims with 35 toyo open country tires and since my fuel milage has been down

2008 Ford F-350 Harley Davidson, KEM performance H&S Tuner with the Nutty Profesor Tune, Pro-Flow exhaust and K&N air filter
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post #5 of 11 Old 03-16-2013, 04:56 AM
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getting 300 miles per tank does not equate to a meaningful number...is 65 mph at unloaded or pulling ? what does your info screen say for miles to go after you fill up ?
hand calculate brimful to brimful for your only true milage burn indicator.its worthwhile taking the time to just do this once and you'll know exactly where you stand.

2008 6.4 job3 F250 3:55 gears 10K gvw silver stretchcab 8ft box.timbrens and goosenek hitch.51 gal aux tank.
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post #6 of 11 Old 03-16-2013, 05:04 AM
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Do you need to, or did you recalculate for tire size?? Or are they the same??

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Of course I'm handy under the hood, I currently own a cummins.

2010 F350 CCLB Cabelas Edition
No Limit cai, Mini Maxx, 5" turbo back Flo Pro, Sinister egr delete, Sinister coolant filter, Cat EC-1, PTP shift solenoid. 20x9 +18 XD Monsters
01' 7.3 CCLB, 6637,wicked wheel G2, HPX, PHP Hydra, MBRP 4" Turbo back, Bellowed uppipes, Stancor gpr, 6.0 cooler, Fpr, Glow shift exhaust, pyro, trans, 203*/billet housing/ Cat EC-1, '07headlights/05' grill, Oh8' gate.
78' F350 "dumpy" old school
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post #7 of 11 Old 03-16-2013, 06:31 AM
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Tips for mileage:

Keep filters clean.
Reduce parasitic loss of power.
Keep egts as low as you can, drive according to temps not speed limit signs.
Keep boost low while cruising
Air pressure in tires maxxed. Highway treaded low rolling resistance tires.
Run good quality fuel.

At least 75% of fuel economy is driving habits.. I'd reckon the mean average for these rigs when tuned and deleted is about 15mpgs unloaded.. if you're not getting that, and you've addressed the items listed above, you need to consider driving habits as your limiter.
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post #8 of 11 Old 03-16-2013, 08:43 AM
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Quote:
Originally Posted by extremef350 View Post
Funny you say that about tires because I just put american force 22" rims with 35 toyo open country tires and since my fuel milage has been down
that'll do it! bigger heavier higher resistance tires! fuel additives may help if you can find a good distance one

2007 Ford F250 Lariat 6.0 Powerstroke

mods:
Banks Ram air
Sinister Coolant Filter
Swamps 48V FICM with PHP Atlas 40
B&W turnover ball hitch
EGR Delete
Diesel Site Intercooler Boots
SCT livewire TS 5015 w/IDP custom tunes
Agressive street, Tow W/jake brake, Economy

Other rides:
2010 Ford Explorer 4.6 24V V8
1999 Ford Mustang Cobra 4.6 32V V8
Mods:
JLT True CAI
Smoked Heads/tails

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post #9 of 11 Old 03-17-2013, 11:39 AM
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I have heard that using synthetic oil can help mpgs. and the motor!

2013 Dodge Ran 2500 4X4 crew cab long bed
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post #10 of 11 Old 03-17-2013, 03:18 PM
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stay off the throttle
use ford cetane boost

dunno if your tunes are geared for economy.

also 355 gears will get better fuel eco than 373. i dunno if they ever made 331 for the 64.

08 F250 KR
08 F250 XL
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